This book studies the problems of stability and well-posedness, in the
convex case. Stability means the basic parameters of a minimum problem
do not vary much if we slightly change the initial data, while
well-posedness means points with values close to the value of the
problem must be close to actual solutions. In studying this, one is
naturally led to consider perturbations of functions and of sets.
This book contains a condensed explication of hypertopologies and is
intended to help those not familiar with hypertopologies learn how to
use them in the context of optimization problems.